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Quest Diagnostics
DGX

1,067 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 123 funds opening new positions, 351 increasing their positions, 381 reducing their positions, and 88 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more call options, than puts

Call options by funds: $96.9M | Put options by funds: $40.5M

100% more funds holding in top 10

Funds holding in top 10: 2 → 4 (+2)

40% more first-time investments, than exits

New positions opened: 123 | Existing positions closed: 88

9% more capital invested

Capital invested by funds: $18.4B → $20.1B (+$1.67B)

2% more funds holding

Funds holding: 1,050 → 1,067 (+17)

8% less repeat investments, than reductions

Existing positions increased: 351 | Existing positions reduced: 381

2.21% less ownership

Funds ownership: 95.56% → 93.34% (-2.2%)

Holders
1,067
Holders Change
+17
Holders Change %
+1.62%
% of All Funds
13.06%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
123
Increased
351
Reduced
381
Closed
88
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M

Top Buyers

Rank Fund Capital Flow
1
EIG
EdgePoint Investment Group
Ontario, Canada
+$113M
2
MDSL
M.D. Sass LLC
New York
+$58.2M
3
WP
Woodline Partners
California
+$49M
4
CCMG
Clark Capital Management Group
Pennsylvania
+$45.7M
5
Barclays
Barclays
United Kingdom
+$45.1M

Top Sellers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
-$80.1M
2
Goldman Sachs
Goldman Sachs
New York
-$70M
3
FMI
Fiduciary Management Inc
Wisconsin
-$63.3M
4
FGP
Freestone Grove Partners
California
-$59M
5
JP Morgan Chase
JP Morgan Chase
New York
-$58.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
AFG
1026
Albion Financial Group
Utah
$2.16K +$2.14K +11 New
BLC
1027
Brown, Lisle/Cummings
Rhode Island
$2.16K +$2.14K +11 New
JFG
1028
JDM Financial Group
Texas
$2.16K +$2.14K +11 New
B
1029
Bayban
Minnesota
$1.96K – – –
HHCP
1030
Hilton Head Capital Partners
South Carolina
$1.96K – – –
FC
1031
Financial Consulate
Maryland
$1.96K +$389 +2 +25%
HFS
1032
Hughes Financial Services
Virginia
$1.96K +$971 +5 +100%
SC
1033
Solstein Capital
California
$1.76K -$7.77K -40 -82%
MWM
1034
Mascoma Wealth Management
New Hampshire
$1.76K -$583 -3 -25%
JGIA
1035
Jackson Grant Investment Advisers
Connecticut
$1.76K – – –
BH
1036
Burk Holdings
Oklahoma
$1.57K +$1.55K +8 New
EWM
1037
Evolution Wealth Management
Florida
$1.37K – – –
NRG
1038
Nemes Rush Group
Michigan
$1.37K – – –
RWM
1039
Raffa Wealth Management
District of Columbia
$1.37K +$389 +2 +40%
RWS
1040
Retirement Wealth Solutions
Wisconsin
$1.37K +$389 +2 +40%
EP
1041
Essential Partners
California
$1.37K +$583 +3 +75%
VWM
1042
Vermillion Wealth Management
Minnesota
$1.37K +$1.36K +7 New
SC
1043
SouthState Corp
Florida
$1.18K -$2.53K -13 -68%
1CP
1044
1015 Capital Partners
Pennsylvania
$1.18K – – –
APW
1045
Aventura Private Wealth
Florida
$1.18K – – –
HIA
1046
HFM Investment Advisors
New Jersey
$1.18K – – –
MAM
1047
Marquette Asset Management
Minnesota
$1.18K +$583 +3 +100%
NB
1048
NBT Bank
New York
$1.18K +$1.17K +6 New
CAL
1049
Capital Analysts LLC
Pennsylvania
$1K +$777 +4 New
PWA
1050
Physician Wealth Advisors
Utah
$980 +$389 +2 +67%
40 41
42
43 44

DGX Hedge Fund Activity: Q1 2026 in Review

1,067 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Quest Diagnostics (DGX) for Q1 2026, worth a combined $20.1B — up 9.1% from $18.4B a quarter earlier.

Buyers outnumbered sellers: 123 funds opened new DGX positions and 88 closed out — a net gain of 35 holders — while 351 added to existing stakes and 381 trimmed.

The largest buyer was EdgePoint Investment Group, adding an estimated $113M. The largest seller was UBS Group, cutting an estimated $80.1M.

  • 1,067 institutional investors held Quest Diagnostics (DGX) as of Q1 2026, up from 1,050 in Q4 2025.
  • Funds reported $20.1B of Quest Diagnostics stock for Q1 2026, up 9.1% quarter-over-quarter.
  • 123 funds opened new Quest Diagnostics positions in Q1 2026 and 88 closed out, a net change of +35 holders.
  • The largest Quest Diagnostics buyer in Q1 2026 was EdgePoint Investment Group, an estimated $113M added.
  • The largest Quest Diagnostics seller in Q1 2026 was UBS Group, an estimated $80.1M sold.

Based on aggregated 13F filings for Q1 2026.